baber/WOPTO huggingface dataset:
Patent GB-1524460-A (GB)
Title: Track for track laying agricultural tractors and like vehicles
IPC: B62D55/26
Filed: 1976-09-17
Abstract: 1524460 Endless track vehicles FIAT TRATTORI SpA 17 Sept 1976 [26 Sept 1975] 38681/76 Heading B7H A track for an endless track vehicle has first and second forms of ground engaging element 10, 12 connected alternately to the links of an endless chain, the elements 10 each having two transversely aligned ribs 14a, 14b separated by a gap 16, and the elements 12 being narrower than elements 10 and each having a rib 18 which is aligned longitudinally with the gap 16 and has substantially the same length as the ribs 14a, 14b.
Patent GB-338771-A (GB)
Title: A method of rolling down metal bands and sheets in the hot state to thin gauges
IPC: B21B1/26
Filed: 1929-12-18
Abstract: 338,771. Broemel, L. E. Dec. 18, 1929, Metal-heating furnaces.-Bands or sheets are rolled out thin by taking the bar from the furnace A and passing it through rolls 1 - - 6 whence it goes to a traversable reheating furnace B or D at the dotted central position where it is rolled up on a rotating drum, with the help of driven press rollers B<1>, D<1> and a sliding piece C'. Furnace B or D is then moved sideways on rails and after heating, the drum and rollers are reversed to feed the sheet to rolls 7 and thence to stationary furnace F where it is again rolled up and reheated. Then the direction of rotation in furnace F is reversed and the sheet is fed back through rolls 7 to furnace B and so back and forth between furnaces B and F until the required thickness is obtained. Other furnaces D and E and rolls 8 act similarly to keep rolls 1 - - 6 going. Finally furnace B or D is moved aside as required to allow the sheets or strips to be wound up on reels C or allowed to cool in strips.
Patent GB-1408563-A (GB)
Title: Textile printing compositions
IPC: C09B67/42
Filed: 1971-08-19
Abstract: 1408563 Alcohol dispersions ALLIANCE DYE & CHEMICAL CO Ltd 7 Sept 1972 [19 Aug 1971] 38899/71 Heading B1V [Also in Division D1] A thickener for use in textile printing consists exclusively of a viscous aqueous dispersion prepared by emulsifying at least one water-insoluble straight-chain alcohol having at least twelve carbon atoms in an aqueous medium in the presence of a non-proteinaceous emulsifying agent, the emulsifying agent preferably being present in proportion 5 to 20% by weight based on the alcohol. Alcohols exemplified are:-a mixture of 70% stearyl, 25% cetyl and 5% lauryl alcohols; cetyl alcohol; myristyl alcohol; cetyl/oleyl alcohol; stearyl alcohol; lauryl alcohol. The emulsifying agent may be non-ionic, cationic or anionic. The dispersion may be made by melting the alcohol and emulsifier together and pouring the molten mixture with stirring into water heated to a temperature above the melting point of the alcohol, stirring being continued until the temperature has fallen below the melting point of the alcohol. Alternatively, the alcohol and emulsifier melt may be solidified into blocks or converted into flakes, granules or powder, the dispersion being prepared by sprinkling the flakes &c into heated water as before.
Patent GB-1436420-A (GB)
Title: Assembly of tubes
IPC: F16B4/00
Filed: 1973-08-17
Abstract: 1436420 Ladder joints H ZENHAUSERN 17 Aug 1973 [25 Aug 1972] 38946/73 Heading E1S [Also in Division F2] Two tubes 1, 2 of unequal cross-section, which may be respectively a stile and rung of a ladder, are connected mutually perpendicularly by first partially inserting a frustoconical plug 4 into the end of the smaller tube (rung) 2, and then inserting this end with the plug into a transverse bore 3 in the larger tube (stile) 1, whereby abutment of the plug against a rib 7 extending along the inner wall of the tube 1 causes deformation of the end of the tube 2 as it is pressed further in, resulting in a non-detachable joint. Further ribs may be formed parallel to and spaced from the rib 7. The plug 4 may have alternating frusto-conical and cylindrical portions, and may be of a hard plastics.
Patent GB-822600-A (GB)
Title: Improvements in or relating to page-printing typewriters and teleprinters
IPC: B41J29/18
Filed: 1957-12-17
Abstract: 822,600. Typewriters &c. SIEMENS & HALSKE A. G. Dec. 17, 1957 [Dec. 21, 1956], No. 39254/57. Class 100(4) A typewriter or like machine, including a transparent plate 2 covering the printing mechanism, and an anti-glare device consisting of a thin plate 3 which while shielding the plate 2 from above, does not interfere with the operator's view of the paper 16. The plate 3 is finished matt or semi-matt and is detachably mounted on spring-loaded plungers 5 having cotter rings engaging in grooves in the plungers and which co-act with friction discs so that the plate may remain in adjusted position. In a modification the plate 3 is held in end supports each having a number of angularly disposed grooves.
Patent GB-925572-A (GB)
Title: Heat-sensitive recording material and process for the preparation thereof
IPC: B41M5/36
Filed: 1960-11-15
Abstract: In a modification of the process of the parent Specification-wherein a process of preparing a heat-sensitive material adapted to receive an impression from a heat source comprises the steps of preparing a solution of an organic thermoplastic polymer material, capable of forming a film, in a substantially anhydrous organic solvent, adding a substantially anhydrous organic liquid, which is a non-solvent precipitating liquid for the polymer and has a boiling point at least 40 DEG C. higher than the solvent, in such an amount that the pH of the resultant solution is below the pH of the isoelectric point of the solution of the polymer in the solvent, but such that an incipient precipitation of at least a fraction of the solid phase takes place, spreading the resultant solution over a flat surface and evaporating all the volatile liquid phases until a continuous film is formed-a plasticizing material containing a major proportion of secondary plasticizer and minor proportion of primary plasticizer is introduced into the solution at a stage prior to the evaporation of the volatile liquids.  In an optional additional modification the flat surface may be a backing material which contains 2 to 25% of an inorganic white pigment and which may also contain 2 to 9% of an organic dyestuff.
Patent GB-946501-A (GB)
Title: Improvements in or relating to rack and pinion steering gear for vehicles
Inventor: PARKER ROBERT WILLIAM
IPC: B62D3/12
Filed: 1961-11-02
Abstract: 946,501. Vehicle steering gear. ENGINEERING PRODUCTIONS (CLEVEDON) Ltd. Oct. 29, 1962 [Nov. 2, 1961], No. 39284/61. Heading F2Q. In a motor vehicle steering gear of the kind wherein a rack 1 is urged against a pinion 3 by a spring 6 acting through a metal or plastics plunger 5, outward movement of the plunger is damped hydraulically by a liquid being forced from an inner chamber 11 to an outer chamber, formed by a domed cover 9, through a restricted passage 15 in a fixed orifice plate 8, unimpeded return flow being through a non- return valve 12. In Fig. 2 (not shown), the pinion is above the rack, and the damper unit lies below the latter, with the outer chamber connected to a reservoir above the pinion. The damper unit may be positioned opposite the pinion, or intermediate the pinion centre line and a rack end bearing, or two dampers may be used, one opposite the pinion and one remote from it.
Patent GB-921359-A (GB)
Title: Improvements in or relating to aerating devices
IPC: E03C1/084
Filed: 1959-11-19
Abstract: 921,359. Aerating devices. V. C. V. NIELSEN. Nov. 19, 1959 [Dec. 6, 1958], No. 39311/59. Class 14(1).  An aerating device attached to the outlet of a liquid conduit, e.g. a water faucet or tap, has air intake openings 12, Fig. 2, and liquid passage openings 22, Fig. 4, located between a collar 10 and a disc 14 provided with a break-up and mixing body 15, the openings 22 having a total flow area which is at least half and at most twice the flow area 20 of the liquid supply to the device from the conduit. The arrangement is such that there is substantially free passage of liquid through the device and no substantial build-up of pressure therein. As shown the total flow area of the openings 22 is substantially equal to the flow area 20. The disc 14 may have various shapes to provide flow openings of different forms.
Patent GB-909694-A (GB)
Title: A hydraulic pump or motor device
IPC: F01B3/00
Filed: 1960-11-16
Abstract: 909,694. Swash plate pumps. SUNDSTRAND INTERNATIONAL CORPORATION S.A. Nov. 16, 1960 [Nov. 16, 1959], No. 39413/60. Class 102(1). [Also in Groups XXVI and XXIX] A swash plate pump comprises a rotary or stationary multiple cylinder block 18, and a port 26 in each cylinder communicable successively with the inlet 20a and outlet 19a of an end cover 16 of the pump housing 15, each bucket piston 28 seating in a bearing shoe 30, which has a pressure chamber 64 adjacent a face plate 35 inserted in the stationary (or rotary) swash plate 36, and there being a passage 62, 63 through each piston and bearing respectively and a valve 66 in each passage 62 opened against a spring 68 under the outlet, but not the inlet, pressure of the pump. The swash plate inclination is varied by a hydraulically actuated reciprocable piston 41. A hydraulic motor 11 is driven by the pump. A charge pump 13 supplies liquid to the pump and surplus is fed through a ball valve 60 in a relief passage 58 to a reservoir 10 and thence to the housing 15. Specification 791,992 is referred to.
Patent GB-976353-A (GB)
Title: Anorectic fluorinated amines
IPC: C07C45/67
Filed: 1961-11-03
Abstract: 976,353. Fluorinated amines. SCIENCEUNION & CIE. SOC. FRANCAISE DE RECHERCHES MEDICALES. Nov. 3, 1961 [Nov. 5, 1960; April 4, 1961], No. 39447/61. Heading C2C. The invention comprises compounds of general formula wherein: Y and Z each is a hydrogen atom or a methyl group, W is a methyl group or a trifluoromethyl group, R and R <SP>1</SP> each is a hydrogen atom or a C n H 2n+1  radical (where n is an integer from 1 to 5) or together with the N atom form a heterocyclic piperidine or pyrrolidine ring and X 1 , X 2  and X 3  each is a hydrogen atom a fluorine atom or a trifluoromethyl group, at least one of the symbols X represents a fluorine atom or a trifluoromethyl group; with the proviso that when Y, Z and R are all hydrogen atoms and (a) when R <SP>1</SP> is a hydrogen atom and W is a methyl radical then the symbols X cannot represent two hydrogen atoms and one trifluoromethyl group and (b) when R<SP>1</SP> is an alkyl radical and W is a methyl radical then the symbols X cannot represent two hydrogen atoms and one fluorine atom or one hydrogen atom and two fluorine atoms: their acid addition salts: and their preparation by (1) catalytically reducing a compound of formula in ethanol solution by means of hydrogen, (2) hydrolysing a compound of formula (3) reducing a compound of formula (where R<SP>1</SP> is a hydrogen atom or a CnH 2 n+ 1 radical in which n is 1 to 4), (4) reductively alkylating by means of an aliphatic aldehyde a compound of formula (5) reacting a primary amine I with an appropriate dihalogenoalkane to form the piperidino or pyrrolidino compounds, and (6) reacting a primary amine I with formaldehyde in the presence of formic acid to form the dimethylamino compounds. Quaternary ammonium salts and optical isomers of compounds I are mentioned. 1-(4<SP>1</SP>-Fluorophenyl)-2-nitro-prop-1-ene is obtained from p-fluorobenzaldehyde and nitroethane. 1-(2<SP>1</SP>-Fluorophenyl)-2-methyl-propanol is obtained from 1-bromomethyl-2-fluorobenzene and acetone by Grignard reaction, and yields 1-(2<SP>1</SP>-1- fluorophenyl)-2-methyl-2-formylamino-propane on reaction with sodium cyanide and acetic and sulphuric acids. 1-(4-Fluorophenyl)-1-cyano-3, 3, 3-trifluoro-2- propanone is obtained from ethyl trifluoroacetate and p-fluorobenzyl cyanide, and yields 1-(4-fluorophenyl)-3, 3, 3-trifluoro-2-propanone on reaction with hot sulphuric acid; this yields its oxime. 1-(4<SP>1</SP> and 3 <SP>1</SP>-trifluoromethylphenyl)-2-acetylamino-propanes are obtained from the amines with acetic anhydride. Pharmaceutical compositions (e.g. tablets) comprise compounds I and salts of the invention with inert carriers. They are anorectic and sedative.
Patent GB-1481743-A (GB)
Title: Sheet feeding apparatus
IPC: B65H1/12
Filed: 1974-09-10
Abstract: 1481743 Sheet separating apparatus XEROX CORP 10 Sept 1974 [17 Sept 1973] 39487/74 Heading B8R In an apparatus wherein sheets are separated from the top of a pile 4 by a friction roller 56 co-operating with a retard member 58, the pile is supported on a plate 46 pivotally mounted on a support member 44, which support member is movable laterally of the feed direction between pile loading and sheet separating locations. On movement to the loading location a cam follower on the plate 46 co-operates with a cam 48 to cause pivoting of the plate away from the roller 56 against the bias of springs 99 thereby providing access for loading a fresh pile. On return of the support member to the separating position the plate is released so that springs 99 bring the pile into contact with the roller 56 and the support is latched into position for accurate registration of the pile by a roller on the support engaging a member 50. A switch (124, Fig. 1, not shown) is arranged to activate the apparatus only when the support is in the separating position.
Patent GB-1172937-A (GB)
Title: Electric Refrigerator or like Apparatus
IPC: G05D23/24
Filed: 1968-08-20
Abstract: 1,172,937. Automatic temperature control systems. MATSUSHITA ELECTRONICS CORP. Aug.20, 1968 [Aug. 31, 1967(2)], No.39722/68. Heading G3R. An electric refrigerator system has in series. with a compressor motor a thyristor connected to a Schmitt trigger circuit operated by a temperature detector. A heater connected in series with a further thyristor is operated alternately with the compressor motor. The compressor motor 3 in series with triac 5 is operated when a N.T.C. thermistor 20 is above a determined temperature through a Schmitt trigger circuit including transistors 18, 22 and a bi-lateral switching device 25. When the thermistor 20 reaches the determined temperature triac 5 is rendered non conductive and through a Zener diode 24 and transistor 23 a thyristor 6 is fired energizing a heater 4, elements 5, 6 being energized alternately in a continuing cycle. The temperature of the motor 3 is sensed by a thermistor 42 which at another determined temperature causes a second Schmitt trigger circuit including transistors 33, 34 to prevent the triac 5 from being fired until a motor temperature has decreased.
Patent GB-332878-A (GB)
Title: Improvements in and relating to electric starting motors
Filed: 1929-12-30
Abstract: 332,878. Scintilla Akt.-Ges. Jan. 14, 1929, [Convention date]. Turning-gear.-In an electric starter for internal-combustion engines, a pinion 3 is coupled to one end of the pinion shaft 1, which extends completely through the armature shaft 2, by means of a disc 4 having two sets of internal teeth meshing with the pinion and a toothed flange 5 on the shaft 1 respectively. A nut 11 cooperating with a threaded sleeve 8 secured to the other end of the shaft 1 and positioned beyond the end of the shaft 2 is coupled to the latter by dogs 12, 13 so as to rotate therewith while being capable of axial movement. A number of spring discs 15 are arranged between the end of the thread on the sleeve 8 and a disc 14 secured to the end of the shaft 1, the opposed faces of the disc 14 and nut 11 being bevelled as shown. On starting the motor, the shaft 1 is moved axially so as to bring the pinion 3 into mesh with teeth on the engine flywheel. When the discs 15 engage the nut 11 they are deformed slightly until they rest against the bevelled face of the disc 14, enabling the drive to be taken up without shock. If the pinion fails to mesh with the flywheel teeth the nut 11 moves axially so as to operate a reversing switch 19 by the compression of a spring 18. The motor is thus reversed and the nut returned to its original position, imparting a slight rotary movement to the shaft 1. The spring 18 is now unstressed and the switch moves to its original position. This sequence of operations continues until the teeth can mesh.
Patent GB-1287087-A (GB)
Title: Improvements in or relating to differential pulse code communication systems
Inventor: LIMB JOHN ORMOND
IPC: H03M3/04
Filed: 1970-08-19
Abstract: 1287087 Differential pulse code modulator WESTERN ELECTRIC CO Inc 19 Aug 1970 [20 Aug 1969] 39835/70 Heading G4H  In a differential pulse code modulator, the analogue input signal is fed to a subtractor unit 201 in which a feedback signal is subtracted from it. The difference signal which is the increase or decrease in the signal during a sampleperiod, is fed to sampler and quantizer 202, which contains threshold devices. The coded output from unit 202 appears on leads S, C, B, or A the lead S carrying is sign bit, and the magnitude of the difference signal being represented by a monophilic code on the remaining three leads. The code represents the magnitude of the difference signal in a non-linear manner. The codes on the four leads S, C, B and A are then fed to unit 203 which produces a binary representation of the magnitude of the analogue input, and feeds this to an accumulator unit 204 which sums the input. The output of unit 204 thus represents the value of the analogue input, it is fed to digital to analogue converter 205 which in turn feeds the subtractor unit 201. The output unit 202 is also fed to a parallel to serial converter 206 prior to transmission. The digital to digital converter 203 employs AND gates, inverters, and OR gates. It converts the monophilic non-linear output of sampler and quantizer 202 into a binary code. In the receiver the serial information is converted to parallel form by unit 209, unit 210 converts the non-linear monophilic code received into binary code, which is then fed to an accumulator 211 which reconstructs the input signal in digital form. This is then fed to a digital to analogue converter 212 which produces an output signal similar to the input at 200.
Patent GB-1001361-A (GB)
Title: Improved energy storing device
IPC: F16F15/121
Filed: 1961-11-07
Abstract: 1,001,361. Momentum power-storing apparatus; flywheels. O. DUROUCHOUX. Nov. 7, 1961 [Nov. 9, 1960; Oct. 20, 1961], No. 39859/61. Headings F2T and F2X. A flywheel comprises an outer easing 5 rotatably mounted on a hub portion 2, the intervening space containing a coiled metal strip 6, one end of which is attached to the hub 2. The other end of the strip 6 may be connected to the casing 5 or, alternatively, left free. The casing 5 may be rotated at high speed through a coupling 7 and its kinetic energy may be discharged by connecting the hub 2 to a shaft 1 by means of a coupling 3. For reducing shock loading when the hub is slowed down, a plurality of flexible blades 25 may be located between the hub 2 and strip 6. In a modification, shown in Figs. 4, 5, two flexible strips 6a, 6b are employed having diametrically opposed attachment points 8a, 8b and rollers 9a, 9b which maintain balance of the assembly. Flywheels may be arranged in series, Fig. 7, or in parallel, Fig. 8. The flywheel casing 5 may be driven from an electric motor 11 through a coupling 13 and shaft 12, Fig. 9. Alternatively, as shown in Fig. 10, a shaft 1 carries planet wheels 14 meshing with a sleeve 15 concentric with the shaft and also meshing with a toothed rim 16 fitted with a brake 17. This may be applied to a vehicle in which the brake 17 is operated at the same time as the conventional brake in order to store energy in the flywheel 5. In the arrangement shown in Fig. 11, a shaft 31 may be coupled directly to a sleeve 32 to transmit the drive from a shaft 30, or, alternatively, a coupling 35 may be engaged with a hub 2 to receive energy from a flywheel, the system ineluding a freewheeling device 34. In a further modification, shown in Fig. 12, a shaft 1 is coupled with a hub 2 through a shaft 37, differential gear provided with a brake 39, and a coupling 40.
Patent GB-1081997-A (GB)
Title: Improvements in and relating to valves for fluid pressure systems
Inventor: LOWE FREDERICK GEORGE
IPC: B60T11/34
Filed: 1963-10-11
Abstract: 1,081,997. Valves; fluid-pressure brakes. AUTOMOTIVE PRODUCTS CO. Ltd. Sept. 24, 1964 [Oct. 11, 1963], No. 40140/63. Headings F2F and F2V. In a valve supplying a fluid pressure-operated brake, the inlet and outlet pressures are equal until the outlet pressure reaches a first predetermined value, whereafter further increase of the inlet pressure causes the outlet pressure to rise at a reduced rate until, when the inlet pressure reaches a second predetermined level, the supply to the brake is cut off. In the embodiment shown, fluid initially flows from a master cylinder to an inlet 17 and thence via a first port 14, the interior of two axially slidable concentric pistons 6, 7, a second port 20 in piston 6 and radial ports 21 to outlets 23 connected to the wheel cylinders. When the outlet pressure reaches a predetermined value it causes the inner piston 6 to move to the left against the action of a spring 12, thereby allowing a ball 24 to close port 20, the ball having been held away from the port by a projection 27 on a plug 9 screwed into the end of piston 7. If the inlet pressure is now increased, the ball 24 will open and close the port to raise the outlet pressure in proportion to the ratio of areas A 1  and A 2 . On reaching another predetermined value the inlet pressure moves piston 7 to the right against the action of a spring 10, thereby allowing a ball 18 to close port 14, the ball having been held away from the port by a projection 13 integral with piston 7.
Patent GB-915958-A (GB)
Title: Improved circuit arrangement for dynamo-electric machines
Inventor: WILLIAMS JOHN DAVID
IPC: H02H7/08
Filed: 1960-11-23
Abstract: 915,958. Control of A.C. motors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 14, 1961 [Nov. 23, 1960], No. 40296/60. Class 38 (3). In an arrangement whereby a motor 4 is supplied with A.C. from a source 6 for running and D.C. from a supply 22 for braking, and having current transformers 7, 11 forming part of a balanced protective system 15, the D.C. connections are made at points 30 ... 33 so that D.C. does not flow through the transformer primary windings. Changeover is effected by a single switch 16 which may be motor-driven. The switch also connects the motor windings in star for running and two of the windings in series for braking.